// Copyright 2007 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.apache.tapestry5.internal.services;

/**
 * Interface used when assembling an attribute value that contains expansions.
 */
public interface StringProvider
{
    /**
     * Ask the object to provide the desired string. Often this involves computing the string value dynamically, or
     * aggregating together multiple StringProviders.
     */
    String provideString();
}
